May 27, 5:56 PM EDT

Report: Colorado prison chief's killing was gang hit

DENVER (AP) -- Newly released documents show authorities believe the killing of Colorado's prisons chief was ordered by members of a white supremacist prison gang.

The Denver Post ( ) obtained a 77-page investigative report alleging 211 Crew gang members ordered the March 2013 killing of Tom Clements. It says they helped gunman Evan Ebel flee to Texas, where he died in a shootout with authorities.

Ebel shot Clements when he answered his front door. The documents, obtained through a records request, say a gang member told investigators Clements' killing was ordered after Ebel had a falling out with the founder of the Colorado prison gang. They also say Ebel had contact with gang members in the days before the shooting.

Authorities have said Ebel was the only suspect. Investigators questioned other gang members but made no arrests.

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